package com.itheima.sh.controller;

import com.itheima.sh.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("consumer")
public class ConsumerController {

    @Autowired
    private RestTemplate restTemplate;

    @Autowired
    DiscoveryClient discoveryClient;


    @GetMapping("{id}")
    public User queryById(@PathVariable("id") String id){

//        List<ServiceInstance> instances = discoveryClient.getInstances("user-service");  // 大小写都可以
//        ServiceInstance serviceInstance = instances.get(0);
//
//        String host = serviceInstance.getHost();  // 获取主机地址
//        int port = serviceInstance.getPort();     // 获取端口
//        String url = serviceInstance.getUri().toString(); // 获取请求URL

//        String url = "http://localhost:8081/user/" + id;

        // Eureka注册中的提供者名称。 解决了提供者服务端口被写死的问题
        String url = "http://user-service/user/"+id;
        //调用RestTemplate的getForObject方法，指定url地址和返回值类型
        User user = restTemplate.getForObject(url, User.class);
        return user;
    }
}
